70dB Gain Dual Band GSM Signal Booster 900/1800MHz for Home & Office with 20dBm Output Power
Price:
USD+70---85+kit
MOQ:
5Pcs
Delivery Time:
3-5 work days
Brand:
ATNJ
Product Description
Product Overview
High-performance dual-band GSM signal booster with 70dB gain for enhanced 2G cellular network coverage in residential and commercial environments.
Frequency Compatibility
Available in dual-band configurations: 900/1800MHz or 1800/2100MHz. Please verify your local network frequency compatibility before purchase.
How to Check Your Network Frequency
- Android Devices: Download "Network Cell Info Lite" app to identify LTE band
- iPhone Devices: Dial *3001#12345#*, select "Cell Serving Info", and check "Freq Band Indicator"
Technical Specifications
| Specification | Parameters |
|---|---|
| Frequency Range (Uplink) | 890-915MHz, 1920-1980MHz |
| Frequency Range (Downlink) | 935-960MHz, 2110-2170MHz |
| Frequency Bandwidth | 25MHz & 60MHz |
| Gain | 70dB |
| Output Power | 20dBm |
| Operating Temperature | -10°C to +55°C |
| Power Supply | AC 110-220V±20%, 50/60Hz |
| Dimensions | 165×130×40mm |
| Weight | ≤0.8kg (Net) |
Package Contents
- Dual Band Booster Unit
- 20 meters cable
- 5 meters cable
- Indoor Ceiling Antenna
- Outdoor Log-periodic Antenna
- Power Adapter
Installation Guide
Wall-mounted installation using expansion bolts:
- Drill holes and install expansion bolts
- Align holes, place washers and nuts, tighten fasteners
- Mount booster unit securely
- Connect all cables and power supply
- Power on and verify operation status
Ideal Application Areas
- Underground spaces: basements, parking garages, tunnels
- Signal-shielded locations: offices, supermarkets, cinemas, hotels
- Remote areas distant from cellular base stations
Frequently Asked Questions
Does the signal booster emit radiation?
Yes, but minimal. The booster actually reduces overall radiation exposure during calls by improving signal strength, which prevents phones from transmitting at maximum power.
Can this repeater create signal where none exists?
No, the repeater amplifies existing weak signals but cannot generate signals where none are present.
What is the warranty period?
3-year warranty covering manufacturing defects (excludes man-made damage and natural factors).
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen Atnj Communication Technology Co., Ltd.
Location
Floor 12, Building A, Rd Jiangshi, Quanju High-Tech Industry Park, Guangming District, Shenzhen, Guangdong Province, China
Contact Person
Wave Luo